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madam [21]
3 years ago
12

Please help me, need an expert.

Mathematics
2 answers:
n200080 [17]3 years ago
5 0
The second one, 7 < x < 13
oksian1 [2.3K]3 years ago
5 0
Domain is the numbers you can use
since this is a linear function, the endpoints should be the min and max
range is the numbers y ou get from nputing the domain
x is domain  y is range
so
2 to 5
subsitut 2 for x
y=2(2)+3
y=4+3
y=7

subsitute 5
y=2(5)+3
y=10+3
y=13
so range is
7≤y≤13
2nd option
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Step-by-step explanation:

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5 0
3 years ago
Atul has 2/3 lb of candy. Jose has 3/5 lb and Maria has 1/2 lb less then José. How many more pounds of candy does Atul have than
liraira [26]

Given:

Atul has \dfrac{2}{3} lb of candy.

Jose has \dfrac{3}{5} lb of candy.

Maria has \dfrac{1}{2} lb less than Jose.

To find:

How many more pounds of candy does Atul have than Maria?

Solution:

Since, Maria has \dfrac{1}{2} lb less than Jose, therefore

Maria has = \dfrac{3}{5}-\dfrac{1}{2} lb

Maria has = \dfrac{6-5}{10} lb

Maria has = \dfrac{1}{10} lb

Difference between the candies Atul and Maria have.

Difference = \dfrac{2}{3}-\dfrac{1}{10} lb

Difference = \dfrac{20-3}{30} lb

Difference = \dfrac{17}{30} lb

Therefore,  Atul have \dfrac{17}{30} lb of candy more than Maria.

6 0
3 years ago
For her phone service, Martina pays a monthly fee of $25, and she pays an additional $0.07 per minute of use. The least she has
Mekhanik [1.2K]

Answer: Anything that is 1202 or larger

In other words, m \ge 1202

So we could have m = 1202, or m = 1203, or m = 1204, etc.

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Explanation:

  • m = number of minutes used
  • 0.07m = amount charged for those minutes used excluding the $25
  • 0.07m+25 = total monthly bill now including the extra $25 fee

The monthly bill is at least $109.14, since this is the lowest amount she has been charged.

\text{monthly bill} \ge 109.14\\\\0.07m+25 \ge 109.14\\\\0.07m \ge 109.14-25\\\\0.07m \ge 84.14\\\\m \ge \frac{84.14}{0.07}\\\\m \ge 1202\\\\

This says that the least number of minutes Martina has used is 1202 minutes.

So if m was a whole number, then m could be selected from the set {1202, 1203, 1204, ...}

Side note: 1202 minutes = 1202/60 = 20.033 hours approximately.

8 0
3 years ago
Help me with this pls show work
svp [43]

3x + y = 10

x - 4y = -1

Multiply the 2nd equation by -3

-3x +12y = 3

Add the 1st equation to the 3rd equation:

13y = 13

Divide both sides by 13:

y = 1

Answer: A) 1

7 0
3 years ago
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Answer: 155

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